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new(userspace/falco): enable attaching libsinsp logger to the falco one

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Signed-off-by: Jason Dellaluce <jasondellaluce@gmail.com>
This commit is contained in:
Jason Dellaluce 2022-06-27 13:09:14 +00:00 committed by poiana
parent 3ddabc3b95
commit bae68b37ee
2 changed files with 70 additions and 0 deletions
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68
userspace/falco/logger.cpp
View File

@ -23,6 +23,46 @@ limitations under the License.
int falco_logger::level = LOG_INFO;
bool falco_logger::time_format_iso_8601 = false;
static void decode_sinsp_severity(const string& s, sinsp_logger::severity& sev)
{
if(s == "trace")
{
sev = sinsp_logger::SEV_TRACE;
}
else if(s == "debug")
{
sev = sinsp_logger::SEV_DEBUG;
}
else if(s == "info")
{
sev = sinsp_logger::SEV_INFO;
}
else if(s == "notice")
{
sev = sinsp_logger::SEV_NOTICE;
}
else if(s == "warning")
{
sev = sinsp_logger::SEV_WARNING;
}
else if(s == "error")
{
sev = sinsp_logger::SEV_ERROR;
}
else if(s == "critical")
{
sev = sinsp_logger::SEV_CRITICAL;
}
else if(s == "fatal")
{
sev = sinsp_logger::SEV_FATAL;
}
else
{
throw falco_exception("Unknown sinsp log severity " + s);
}
}
void falco_logger::set_time_format_iso_8601(bool val)
{
falco_logger::time_format_iso_8601 = val;
@ -68,6 +108,34 @@ void falco_logger::set_level(string &level)
}
}
static std::string s_sinsp_logger_prefix = "";
void falco_logger::set_sinsp_logging(bool enable, const std::string& severity, const std::string& prefix)
{
if (enable)
{
sinsp_logger::severity sevcode = sinsp_logger::SEV_DEBUG;
decode_sinsp_severity(severity, sevcode);
s_sinsp_logger_prefix = prefix;
g_logger.set_severity(sevcode);
g_logger.disable_timestamps();
g_logger.add_callback_log(
[](std::string&& str, const sinsp_logger::severity sev)
{
// note: using falco_logger::level ensures that the sinsp
// logs are always printed by the Falco logger. These
// logs are pre-filtered at the sinsp level depending
// on the configured severity
falco_logger::log(falco_logger::level, s_sinsp_logger_prefix + str);
});
}
else
{
g_logger.remove_callback_log();
}
}
bool falco_logger::log_stderr = true;
bool falco_logger::log_syslog = true;

2
userspace/falco/logger.h
View File

@ -28,6 +28,8 @@ class falco_logger
// Will throw exception if level is unknown.
static void set_level(string &level);
static void set_sinsp_logging(bool enable, const std::string& severity, const std::string& prefix);
static void log(int priority, const string msg);
static int level;